Emulation of dual-conjugate adaptive optics on an 8-m class telescope | Zendy

Per Knutsson | Zendy; Mette Owner-Petersen | Zendy

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Emulation of dual-conjugate adaptive optics on an 8-m class telescope

Author(s) -

Per Knutsson,

Mette Owner-Petersen

Publication year - 2003

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.11.002231

Subject(s) - adaptive optics , optics , telescope , physics , emulation , deformable mirror , conjugate , aperture (computer memory) , mathematical analysis , mathematics , acoustics , economics , economic growth

In this article we present a downscaled laboratory setup emulating five natural guide stars, a layered static atmosphere and a 7.5-m aperture telescope equipped with dual-conjugate adaptive optics at a wavelength of 2.2 microm. Three reconstruction alternatives were evaluated; conventional adaptive optics, field-averaged conventional adaptive optics and dual-conjugate adaptive optics. The results were compared with Zemaxsimulations of the setup. The expected increase of the size of the isoplanatic patch, using dual-conjugate adaptive optics, was confirmed.

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